Containing copper, especially copper in its higher oxidation state (Cu²⁺); relating to or derived from copper.
From Latin 'cuprum' (copper) plus the chemical suffix '-ic', which marks compounds where an element shows its higher oxidation state (contrast with 'cuprous' for Cu⁺).
The chemical suffixes '-ic' and '-ous' might seem confusing, but they're brilliant shorthand—'cupric' instantly tells chemists the copper has lost two electrons, while 'cuprous' means one; it's chemistry's efficient language.
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